Title:
PIEZOELECTRIC FILM
Document Type and Number:
WIPO Patent Application WO/2022/202195
Kind Code:
A1
Abstract:
Provided is a piezoelectric film having high piezoelectric performance. The piezoelectric film comprises: a piezoelectric layer comprising a polymer composite piezoelectric material containing piezoelectric particles in a matrix that comprises a polymer material; and electrode layers formed on the respective sides of the piezoelectric layer, wherein the circularity of the piezoelectric particles as observed in the cross-section in the thickness direction of the piezoelectric layer is 0.65-0.92.
Inventors:
ISHIDA JUMPEI (JP)
Application Number:
PCT/JP2022/009174
Publication Date:
September 29, 2022
Filing Date:
March 03, 2022
Export Citation:
Assignee:
FUJIFILM CORP (JP)
International Classes:
H04R17/00; H01L41/083; H01L41/09; H01L41/18
Domestic Patent References:
| WO2020095812A1 | 2020-05-14 | |||
| WO2020095812A1 | 2020-05-14 | |||
| WO2020179353A1 | 2020-09-10 |
Foreign References:
| JP2014162685A | 2014-09-08 | |||
| JP6043673B2 | 2016-12-14 |
Attorney, Agent or Firm:
ITOH Hideaki et al. (JP)
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